认为低线密度纤维增白效果较好。
The whitening effect was fairly good for the fibers with lower linear density.
对硫氢酸钠湿法二步法腈纶进行增白，探讨了主要增白工艺条件对增白效果的影响。
The whitening process was performed on PAN fiber produced by sodium thiocyanate wet spinning. The effects of the main whitening conditions on whitening effect were discussed.
荧光增白剂自身的物理化学性质影响了其在塑料基体中的分散状态，进而影响了增白效果。
The physical and chemical characters of FWA influence the dispersing state of it in plastics, furthermore its whitening effect.
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